Automatic timing device



W. R. ALLEN AUTOMATIC TIMING DEVICE.

APPucAnon men 020.13, 1920.

1 ggg gg Patented Nov. 22, 1921.

WILLIAM RAYMOND ALLEN, 0F HU'ICHINSON, KANSAS.

AUTOMATIC TIMING- DEVICE.

Application filed December 13, 1920.

To all whom 2'1, may concern:

Be it known that I, \VILLIAM RAYMOND ALLEN, a citizen of the UnitedStates, residing at Hutchinson, in the county of Reno and State ofKansas, have invented certain new and useful Improvements in Automatic'i'iming Devices, of which the following is a specification.

This invention relates to improvements in timers to be used inconnection with internal combustion engines and the principal object ofthe invention is to provide improved mechanism for automaticallygoverning the time or period when a spark shall occur in the ignitionsystem in each cylinder of the engine, thus making it unnecessary for aretard and adxance lever to be used at the drive wheel.

The invention was devised particularly for use in connection with theengine of the Ford automobile but it is obvious that it may be appliedto engines of other kinds and types.

A further object of the present invention is to provide improvedmechanism which may be substituted for the internal mechanism of theordinary timer without altering the engine or the engine shaft.

Another object of the invention is to provide simple, inexpensive anddurable mechanism which by reason of its simple construction, is notliable to easily get outof order.

With the foregoing objects outlined and with other objects in view whichwill appear as the description proceeds, the invention consists in thenovel features hereinafter described in detail, illustrated in theaccompanying drawing and more particularly pointed out in the appendedclaims.

Referring to the drawing:-

Figure 1 is a vertical transverse sectional view of the improved timer.

Fig. 2 is a longitudinal sectional view taken on line 2-2 of Fig. 1

Fig. 3 is a perspective View of the roller carrying member forming partof the pres ent invention. I

Fig. {1 is a perspective view of the counter Weight lever.

Fig. 5 is a perspective view of the cylinder'which forms the support formy improved mechanism.

Fig. 6 is a perspective view of the disk to which the counter weightlever is pivoted.

Fig. 7 is a side view of the roller.

In the drawing 1 represents an ordinary Specification of Letters Patent.

Patented Nov. 22,1921.

Serial No. 430,361.

timer shaft which in the present instance, is

provided with a cylinder 2 having a notch 3 designed to engage a pin 1extending from the shaft for fixing the cylinder to said shaft and,causing the cylinder to rotate with the shaft.

A supporting member such as a disk 5 is fixed to one end of the cylinderby means of a pin 6 which enters a notch 7 in the cylinder and a similarnotch 8 in the disk. The disk is provided with an extension t) having anend 10 which extends parallel to the disk and is apertured, as shown at11.

A counter weight lever 12 having a hub 13 provided with a hole 14, isinserted between the end member 10 and the disk 5, and a pin 15 passesthrough the aperture 11, the hole 1a and a hole 16 in the disk 5, forsecuring the lever 12 to the disk. The lever 12 is thickened orenlarged, as shown at 17, to provide a counter weight and the outer endof this counterweight is bifurcated, as shown at 18, and the arms of thebifurcated end a apertured, as shown at 19. It will be noted that thelever 12 and its counter weight is located on one side of the timershaft and on the opposite side a roller carrying lever 20 is arranged.

The lever 20 has one of its cuds 2l'apertured, as shown at 22, and thecud 21 is inserted between the arms 18 to provide a knuckle joint, apin23 passing through the apertures 15) and 22 which secures the ends ofthe levers 12 and 20 together. The knuckle joint prevents the lever 20from moving to a position where its roller 2-1 will diseir gage thetrack way 25 of the casing 26. The. lever 20 is cut away as shown at 27to pro vide a seat for the roller 24 and-a pin 2? passes throughapertures in the lever 20 and the roller 24 for securing said roller tothe lever 20.

The free ends of said levers 12 and 21) are provided with parallelapertured lXtl0Il)lties 29 and 30 between which is located a coiledspring 31, adjusting means 32 being provided for varying the tension .ofthe spring.

The casing 26 is of ordinary construction having an arm 33 for adjustingthe position of the contact segments 34 which are counter I nary timerin substitution parts are of strong and durable construcorder.

struction and operation of our mechanism will beap'parent to thoseskilled in the art,

but we may state that the improved mechanism which includes the parts 2,5, 12, 20 and 31 may be quickly inserted in the ordifor the internalmechanism now in general use;

Attention is called'to the following advantages of the invention. Itsworking tion throughout and as these parts are few in number, they arenot likely-to get out of There are no additional parts to be applied toa Ford engine in order to attach the improved mechanismQ There is noneed for a spark lever with the present invention.

hen applying the mechanism to the timershaft of a Ford automobile, it iskeyed onto the shaft at exactly the same position as the ordinaryinternal mechanism ofthe Ford timer, which causes it to start with theshaft at the most retarded position.

Hence, after placing the mechanism in position, the spark lever at thesteering wheel is placed in the most retarded position and is leftthere, and after this the improved mechanism will operate at the desiredintervals to furnish sparks at all speeds.

In the drawing and description the preferred embodiment of the inventionis disclosed but it is obvious that numerous changes and modificationsmay be made in the construction illustrated without depart:- ing fromthe spirit of the invention. as set forth in the claims. Wt hatisclaimed and desired to be secured by Letters Patent is 1. A timerincluding a shaft, a supporting the supporting pivotally connectedmember carried thereby, a counterweighted lever pivotally mounted onsaid supporting member and movable in a. plane perpendicularly to theaxis of said shaft, a roller support operatively connected with andactuated in one direction by said counterweight lever, a contact rollercarried by the roller support, and means for moving the roller supportin a direction opposite to that in .which' it is moved bysaidcounterweight lever.

2. A timer of the kind defined by claim 1 cylinder mounted a disk towhich on the shaft and carrying the counterweighted lever 3. A timer ofthe in which the counterweighted lever is pivotally connected at anintermediate portion to member.

4. A, timer of the kind defined by claim 1 in which the roller supportincludes alever provided at, one end with means for pivotally"connecting the same to the counterweighted lever, and provided 'atitsopposite end with the means for moving *the roller in which thesupporting member includes a support in a direction opposite to that, in

tvhich it is moved by said counterweighted ever.

5. A; timer of the kind defined by 'claim 1 in which the roller supportincludes a curved lever and in which the contact rollerfis rotatablymounted in an-intermediate-portion of the last named lever.

6. A timer of the kind defined by claim 1 in which 'the means for movingthe roller support in a direction opposite to that in y saidcounterwelghted which it is moved lever, includes a spring.

7. A timer including a shaft, a disk lever pivotally mounted on saiddisk and movable in a plane perpendicularly to the axis of said shaft, aroller support lever to one en.,d, of said counterweighted lever andcarrgirng a contact roller at an intermediate portion of the same, and aspring between the roller support lever and the counter-weighted lever.

In testimony whereof I atfix my signature.

VILLIAM RAYMOND ALLEN.

,mounted on said shaft, a counterweighted

